A chain pressing device for electric bicycle

Abstract

The present invention discloses a chain press-fitting device for an electric bicycle, and relates to the technical field of metal parts assembly, including a base and an adjustment component, wherein the adjustment components are symmetrically arranged on both sides of the base, and the adjustment component includes a slide groove, a slide cavity, a slide plate, a slider, a slide seat and an adjustment rod, and the base is symmetrically provided with slide grooves on both sides, and a slide cavity is arranged below the slide groove, a slide plate is snap-connected in the slide cavity, and a slider is symmetrically connected above the slide plate, and a slide seat is arranged above the slider. The present invention can adjust the device when in use, so as to change the distance between the slide seats, so that it can limit chains of different specifications during processing to avoid their deflection during processing, and can simultaneously adjust other parts, so as to press-fit chains of different models, and automatically feed the chain after the press-fitting is completed, so that the operator can assemble outside the press-fitting range, and avoid the operator's hand from being injured due to misoperation in the press-fitting area.

Description

Technical Field

[0001] The invention relates to the technical field of electric bicycle assembly, in particular to a chain press-assembly device for an electric bicycle. Background Art

[0002] The electric vehicle chain is an important component of the electric vehicle transmission system. It is responsible for transmitting the power of the motor to the rear wheels, thereby propelling the vehicle forward. In the production process of the electric vehicle chain, usually the various parts are processed first, and then assembled, and the pin shaft is pressed into the connection of the chain link through a pressing device for assembly.

[0003] When processing chains, the existing press-fitting device can usually only process one type of chain, which is not convenient for assembling chains of different types. In addition, when workers are feeding materials, press-fitting may begin before their hands leave the processing area due to misoperation, causing injuries to the workers.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an electric bicycle chain pressing device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a chain press-fitting device for an electric bicycle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric bicycle chain pressing device, comprising a base and an adjustment component, the adjustment components are symmetrically arranged on both sides of the base, the adjustment component comprises a slide groove, a slide cavity, a slide plate, a slider, a slide seat and an adjustment rod, the base is symmetrically provided with slide grooves on both sides, and a slide cavity is arranged below the slide groove, a slide plate is snap-connected in the slide cavity, and a slider is symmetrically connected above the slide plate, a slide seat is arranged above the slider, and an adjustment rod is rotatably connected in the slide cavity.

[0007] Furthermore, the slide plate is slidably connected to the base via a slide cavity, and the slider is slidably connected to the base via a slide groove, the adjustment rod is threadedly connected to the slide plate, and a bidirectional thread is provided on the surface of the adjustment rod.

[0008] Furthermore, a limit rod is symmetrically connected above the slide seat, and a support spring is connected to the middle of the slide seat. The upper end of the support spring is connected to a linkage plate, and the linkage plate is elastically connected to the slide seat through the support spring.

[0009] Furthermore, the surface of the linkage plate is symmetrically provided with limiting holes, and one side of the linkage plate is symmetrically connected to the limiting plate up and down, and the limiting rod is slidably connected to the linkage plate through the limiting hole.

[0010] Furthermore, pads are symmetrically arranged on both sides of the slide seat, and a clamping ring is connected above the pad. A clamping seat is clamped and connected inside the clamping ring, and the clamping seat is rotatably connected to the pad via the clamping ring.

[0011] Furthermore, a feeding wheel is connected above the holder, and an insertion rail is provided in the center of the feeding wheel, slots are symmetrically provided on both sides of the insertion rail, and only two chain teeth are provided on the outer side of the feeding wheel.

[0012] Furthermore, the feeding wheel is provided with a shift groove between the insertion rails, and a stopper is rotatably connected to the lower part of the insertion rail, a tension spring is connected to one side of the stopper, and the stopper is elastically connected to the feeding wheel through the tension spring.

[0013] Furthermore, a cross beam is connected above the base, and lifting rods are symmetrically arranged on the lower surface of the cross beam, a support plate is connected below the lifting rod, and sleeves are arranged at the four corners of the support plate, an insertion rod is slidably connected to the inner side of the sleeve, and a buffer spring is connected to one end of the insertion rod, and a shift rod is arranged at the other end of the insertion rod.

[0014] Furthermore, the insertion rod is elastically connected to the support plate through a buffer spring, and the insertion rod is slidably connected to the feeding wheel and the holder through a slot, and the shift rod is slidably connected to the feeding wheel through an insertion rail and a shift groove.

[0015] Furthermore, a sleeve shell is connected below the support plate, and an inner shell is slidably connected to the inner side of the sleeve shell, a pressure block is provided on the inner side of the inner shell, and press-fit springs are connected between the sleeve shell and the inner shell and between the inner shell and the pressure block, limiting grooves are provided on both sides of the sleeve shell and the inner shell, and the limiting plate is slidably connected to the sleeve shell and the inner shell through the limiting grooves.

[0016] The present invention provides an electric bicycle chain press-fitting device, which has the following beneficial effects: the device can be adjusted during use to change the distance between the slide seats, so that chains of different specifications can be restricted during processing to avoid them from being skewed during processing, and other parts can be adjusted synchronously to press-fit chains of different models, and the chain can be automatically fed after the press-fitting is completed, so that the operator can assemble outside the press-fitting range, avoiding injuries to the operator's hands due to misoperation in the press-fitting area.

[0017] 1. When the present invention is in use, the adjusting rod can be rotated on the base for chains of different specifications, so that the adjusting rod drives the slide plate to move in opposite directions in the slide cavity through the bidirectional thread on its surface, and then drives the slide seat to move in opposite directions on the base through the slider, so that the distance between the slide seats is adapted to the width of the chain, so that the slide seat can limit the chain without affecting the movement of the chain, thereby avoiding the deflection of the chain during movement, resulting in a failure of press-fitting. When the slide plate is moving, the slider can limit the slide plate through the slide groove, thereby avoiding the deflection of the slide plate driving the slide seat to deflect, so that the slide seat cannot limit the chain or hinder the movement of the chain. In summary, when in use, the device can be adjusted according to the chain model, so as to limit chains of different models, thereby avoiding a failure of press-fitting due to position deviation during press-fitting.

[0018] 2. When adjusting the position of the slide seat, the slide seat can drive the linkage plate to move synchronously through the limit rod, so that the limit plate is inserted into the corresponding limit groove, so that the limit plate can limit the inner shell or the pressure block. When press-fitting a chain with a larger size, the upper limit plate stays in the limit groove and does not enter the casing. During press-fitting, the lifting rod drives the casing to descend through the support plate. After the pressure block contacts the pin shaft, the pressure block and the inner shell both compress the press-fitting spring and enter the inner shell and the casing respectively, until the lower surfaces of the pressure block and the inner shell are flush with the lower surface of the casing. The three jointly apply uniform force to the pin shaft to press it into the connection of the chain link to complete the press-fitting. When press-fitting a chain with a medium size, the upper limit plate passes through the limit groove and enters the casing to limit the inner shell, so that the inner shell cannot move during press-fitting, so that the pressure block cooperates with the inner shell for press-fitting. When a chain with a smaller size is press-fitted, the lower limit plate passes through the limit groove and enters the inner shell to restrict the pressure block, so that the pressure block cannot move during press-fitting, and the pressure block can be press-fitted alone. During the press-fitting process, the shell can drive the linkage plate to descend synchronously through the limit groove and the limit plate. The limit rod can limit the linkage plate through the limit hole to avoid the linkage plate from deflecting. The support spring can drive the linkage plate to reset after the press-fitting is completed, and can also provide support for the linkage plate to avoid the limit plate completely falling under the action of gravity after the limit plate is completely out of the limit groove during adjustment, resulting in the inability to adjust again. In summary, when adjusting the slide seat, the position of the limit plate can be adjusted synchronously, so that press-fitting can be performed through different parts to ensure that the pin shaft is evenly stressed. At the same time, it can also avoid the press-fitting part being unable to be fully pressed down for press-fitting due to being wider than the slide seat gap.

[0019] 3. During press-fitting, the support plate can drive the plunger to descend synchronously through the buffer spring, and the plunger is inserted into the slot. The shift rod follows the plunger to enter the insertion rail synchronously, and during the descending process, the stopper is pressed to rotate in the insertion rail and stretch the tension spring. After the shift rod passes through the stopper, the stopper can rebound and be stuck in the insertion rail under the action of the tension spring. After the plunger touches the bottom and cannot move, as the support plate continues to descend, the buffer spring is compressed to prevent the plunger from hindering the movement of the support plate. The sleeve can limit the plunger to prevent the plunger from deflecting. After the press-fitting is completed, the lifting rod drives the support plate to rise, which can drive the plunger to rise. During the rise of the plunger, the shift rod can follow the plunger to move in the insertion rail. When the shift rod contacts the stopper, the stopper can block and guide the shift rod, so that the shift rod slides from the shift slot to the upper end of the insertion rail, thereby allowing the shift rod to drive the feeding wheel to rotate half a circle through the shift slot. Then the insert rod drives the moving rod to leave the insert rail, so that the feed wheel automatically transports the chain without manual feeding. Because there are only two sprockets on the feed wheel, each half turn of the feed wheel will only drive the chain to move the distance of one chain link, ensuring that the chain can be pressed in sequence. The retaining ring can limit the holder to prevent the moving rod from being blocked by the block. The insert rod lifts the feed wheel through the moving rod, and when adjusting the slide, the holder can also be removed from the retaining ring, so that the feed wheel suitable for the chain size can be replaced on the pad. During the pressing process, the operator can assemble the chain links outside the pressing area and insert the pins at the connection, without having to operate in the pressing area, to avoid hand injuries to the operator. In summary, during use, the chain can be automatically conveyed and the chain can be assembled outside the pressing area, to avoid hand injuries to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an electric bicycle chain press-fitting device of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of an electric bicycle chain press-fitting device of the present invention;

[0022] Figure 3 It is a side structural schematic diagram of a chain press-fitting device for an electric bicycle according to the present invention;

[0023] Figure 4 It is a schematic diagram of a half-cut three-dimensional exploded structure of a base of an electric bicycle chain press-fitting device of the present invention;

[0024] Figure 5 It is a half-section three-dimensional structural schematic diagram of an electric bicycle chain press-fitting device of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional front view of the structure of a chain press-fitting device for an electric bicycle according to the present invention;

[0026] Figure 7The present invention is a schematic diagram of the cross-sectional front view of a clamping seat of an electric bicycle chain press-fitting device.

[0027] In the figure: 1. base; 2. adjustment component; 201. slide groove; 202. slide cavity; 203. slide plate; 204. slider; 205. slide seat; 206. adjustment rod; 3. limit rod; 4. support spring; 5. linkage plate; 6. limit hole; 7. limit plate; 8. pad; 9. retaining ring; 10. holder; 11. feed wheel; 12. slot; 13. rail; 14. shifting groove; 15. stopper; 16. tension spring; 17. crossbeam; 18. lifting rod; 19. support plate; 20. sleeve; 21. plug rod; 22. buffer spring; 23. shift rod; 24. sleeve; 25. inner shell; 26. pressure block; 27. press-fit spring; 28. limit groove. DETAILED DESCRIPTION

[0028] See also Figures 1 to 7 The present invention provides a technical solution: a chain press-fitting device for an electric bicycle, comprising a base 1 and an adjusting component 2, wherein the adjusting components 2 are symmetrically arranged on both sides of the base 1, and the adjusting component 2 comprises a slide groove 201, a slide cavity 202, a slider 204, a slide seat 205 and an adjusting rod 206, slide grooves 201 are symmetrically opened on both sides of the base 1, and a slide cavity 202 is arranged below the slide groove 201, a slide plate 203 is snap-connected in the slide cavity 202, and a slider 204 is symmetrically connected above the slider 203, a slide seat 205 is arranged above the slider 204, and an adjusting rod 206 is rotatably connected in the slide cavity 202.

[0029] See also Figures 1 to 6 The slide plate 203 is slidably connected to the base 1 through the slide cavity 202, and the slider 204 is slidably connected to the base 1 through the slide groove 201. The adjusting rod 206 is threadedly connected to the slide plate 203, and the surface of the adjusting rod 206 is provided with a bidirectional thread. The upper part of the slide seat 205 is symmetrically connected with a limit rod 3, and the middle part of the slide seat 205 is connected with a support spring 4, and the upper end of the support spring 4 is connected with a linkage plate 5, and the linkage plate 5 is elastically connected to the slide seat 205 through the support spring 4, and the surface of the linkage plate 5 is symmetrically provided with a limit hole 6 , and a limit plate 7 is symmetrically connected to one side of the linkage plate 5, the limit rod 3 is slidably connected to the linkage plate 5 through the limit hole 6, a sleeve 24 is connected below the support plate 19, and an inner shell 25 is slidably connected to the inner side of the sleeve 24, a pressure block 26 is arranged on the inner side of the inner shell 25, and a press spring 27 is connected between the sleeve 24 and the inner shell 25 and between the inner shell 25 and the pressure block 26, and a limit groove 28 is provided on both sides of the sleeve 24 and the inner shell 25, and the limit plate 7 is slidably connected to the sleeve 24 and the inner shell 25 through the limit groove 28;

[0030] The specific operation is as follows. When in use, the adjusting rod 206 can be rotated on the base 1 according to chains of different specifications, so that the adjusting rod 206 drives the slide plate 203 to move in the slide cavity 202 through the bidirectional thread on its surface, and then drives the slide seat 205 to move in the base 1 through the slider 204, so that the distance between the slide seats 205 is adapted to the width of the chain, so that the slide seat 205 can limit the chain without affecting the movement of the chain, so as to avoid the deflection of the chain during movement, resulting in press-fitting failure. When the slide plate 203 moves, the slider 204 can limit the slide plate 203 through the slide groove 201, so as to avoid the deflection of the slide plate 203 driving the slide seat 205 to deflect, so that the slide seat 205 cannot align with the chain The chain is restricted or blocked from moving. In summary, when in use, the device can be adjusted according to the chain model, so as to restrict chains of different models, so as to avoid failure of press-fitting due to position deviation during press-fitting. When adjusting the position of the slide 205, the slide 205 can drive the linkage plate 5 to move synchronously through the limit rod 3, so that the limit plate 7 is inserted into the corresponding limit groove 28, so that the limit plate 7 can restrict the inner shell 25 or the pressure block 26. When a chain with a larger size is press-fitted, the upper limit plate 7 stays in the limit groove 28 and does not enter the sleeve shell 24. During press-fitting, the lifting rod 18 drives the sleeve shell 24 to descend through the support plate 19. After the pressure block 26 contacts the pin, the pressure block 26 and the inner shell 25 compresses the press-fitting spring 27 and enters the inner shell 25 and the sleeve shell 24 respectively, until the lower surface of the pressing block 26 and the inner shell 25 is flush with the lower surface of the sleeve shell 24, and the three jointly apply force to the pin shaft evenly to press it into the connection of the chain link to complete the press-fitting. When the chain of medium size is press-fitted, the upper limit plate 7 passes through the limit groove 28 and enters the sleeve shell 24 to restrict the inner shell 25, so that the inner shell 25 cannot move during press-fitting, so that the pressing block 26 cooperates with the inner shell 25 for press-fitting. When the chain of smaller size is press-fitted, the lower limit plate 7 passes through the limit groove 28 and enters the inner shell 25 to restrict the pressing block 26, so that the pressing block 26 cannot move during press-fitting, so that the pressing block 26 is press-fitted alone. During the press-fitting process, the sleeve 24 can drive the linkage plate 5 to descend synchronously through the limit groove 28 and the limit plate 7, and the limit rod 3 can limit the linkage plate 5 through the limit hole 6 to prevent the linkage plate 5 from being tilted, and the support spring 4 can drive the linkage plate 5 to reset after the press-fitting is completed, and can also provide support for the linkage plate 5 to prevent the limit plate 7 from completely slipping out of the limit groove 28 during adjustment, and the linkage plate 5 from descending under the action of gravity, resulting in the inability to adjust again. In summary, when adjusting the slide 205, the position of the limit plate 7 can be adjusted synchronously, so that press-fitting can be performed through different parts to ensure that the pin shaft is evenly stressed, and at the same time, it can also prevent the press-fitting part from being unable to be fully pressed down for press-fitting due to being wider than the gap of the slide 205.

[0031] See also Figures 1 to 7, pads 8 are symmetrically arranged on both sides of the slide 205, and a snap ring 9 is connected above the pad 8, a snap seat 10 is snap-connected inside the snap ring 9, and the snap seat 10 is rotatably connected to the pad 8 through the snap ring 9, a feeding wheel 11 is connected above the snap seat 10, and a plug rail 13 is provided in the center of the feeding wheel 11, and slots 12 are symmetrically provided on both sides of the plug rail 13, only two sprockets are arranged on the outside of the feeding wheel 11, and a shift groove 14 is provided between the plug rails 13 of the feeding wheel 11, and a stopper 15 is rotatably connected to the lower part of the plug rail 13, and a tension spring 16 is connected to one side of the stopper 15, and the stopper 15 is connected to the feeding wheel through the tension spring 16. 11 is elastically connected, a crossbeam 17 is connected above the base 1, and a lifting rod 18 is symmetrically arranged on the lower surface of the crossbeam 17, a support plate 19 is connected below the lifting rod 18, and sleeves 20 are arranged at the four corners of the support plate 19, an insertion rod 21 is slidably connected inside the sleeve 20, and a buffer spring 22 is connected to one end of the insertion rod 21, and a shift rod 23 is arranged at the other end of the insertion rod 21, the insertion rod 21 is elastically connected to the support plate 19 through the buffer spring 22, and the insertion rod 21 is slidably connected to the feeding wheel 11 and the card seat 10 through the slot 12, and the shift rod 23 is slidably connected to the feeding wheel 11 through the insertion rail 13 and the shift groove 14;

[0032] The specific operation is as follows: during press-fitting, the support plate 19 can drive the insertion rod 21 to descend synchronously through the buffer spring 22, insert the insertion rod 21 into the slot 12, and the shift rod 23 follows the insertion rod 21 to synchronously enter the insertion rail 13, and press the stopper 15 to rotate in the insertion rail 13 during the descent process and stretch the tension spring 16. After the shift rod 23 passes through the stopper 15, the stopper 15 can rebound and be stuck in the insertion rail 13 under the action of the tension spring 16. After the insertion rod 21 touches the bottom and cannot move, as the support plate 19 continues to descend , the buffer spring 22 is compressed to prevent the insertion rod 21 from hindering the movement of the support plate 19, and the sleeve 20 can limit the insertion rod 21 to prevent the insertion rod 21 from deflecting. After the press-fitting is completed, the lifting rod 18 drives the support plate 19 to rise, which can drive the insertion rod 21 to rise. During the rise of the insertion rod 21, the moving rod 23 can follow the insertion rod 21 to move in the insertion rail 13. When the moving rod 23 contacts the stopper 15, the stopper 15 can block and guide the moving rod 23, so that the moving rod 23 slides from the shifting groove 14 to the upper end of the insertion rail 13. Thereby, the shift rod 23 drives the feeding wheel 11 to rotate half a circle through the shift groove 14, and then the insertion rod 21 drives the shift rod 23 to leave the insertion rail 13, so that the feeding wheel 11 automatically conveys the chain without manual feeding. In addition, because there are only two chain teeth on the feeding wheel 11, the feeding wheel 11 will only drive the chain to move a distance of one chain link every half circle, ensuring that the chain can be pressed in sequence. The clamping ring 9 can limit the clamping seat 10 to prevent the shift rod 23 from being blocked by the block 15. 3 The feeding wheel 11 is raised, and when the slide 205 is adjusted, the clamping seat 10 can also be removed from the clamping ring 9, so that the feeding wheel 11 adapted to the chain size is replaced on the backing plate 8. During the press-fitting process, the operator can assemble the chain links outside the press-fitting area and put the pins in the connection without operating in the press-fitting area, thereby avoiding hand injuries to the operator. In summary, when in use, the chain can be automatically conveyed and the chain can be assembled outside the press-fitting area, thereby avoiding hand injuries to the operator.

[0033] In summary, when using the chain press-fitting device for an electric bicycle, firstly, the adjusting rod 206 is rotated on the base 1 according to chains of different specifications, so that the adjusting rod 206 drives the slide plate 203 to move in opposite directions in the slide cavity 202 through the bidirectional thread on its surface, and then drives the slide seat 205 to move in opposite directions on the base 1 through the slider 204, so that the distance between the slide seats 205 is adapted to the width of the chain, so that the slide seat 205 can limit the chain without affecting the movement of the chain, avoiding the chain from deflecting during movement and causing press-fitting failure. When the slide plate 203 moves, the slider 204 can limit the slide plate 203 through the slide groove 201, avoiding the slide plate 203 from deflecting and driving the slide seat 205 to deflect, so that the slide seat 205 cannot limit or hinder the chain. The chain moves. When adjusting the position of the slide 205, the slide 205 can drive the linkage plate 5 to move synchronously through the limit rod 3, so that the limit plate 7 is inserted into the corresponding limit groove 28, so that the limit plate 7 can limit the inner shell 25 or the pressure block 26. The operator assembles the chain links outside the press-fitting area and puts the pin shaft at the connection. There is no need to operate in the press-fitting area to avoid operator hand injuries. When press-fitting a larger chain, the upper limit plate 7 stays in the limit groove 28 and does not enter the sleeve shell 24. During press-fitting, the lifting rod 18 drives the sleeve shell 24 to descend through the support plate 19. After the pressure block 26 contacts the pin shaft, the pressure block 26 and the inner shell 25 both compress the press-fitting spring 27 and enter the inner shell 25 and the sleeve shell 24 respectively until the pressure block 26 and the inner shell 2 After the lower surface of the sleeve 24 is flush with the lower surface of the sleeve 24, the three jointly apply force to the pin shaft evenly, press it into the connection of the chain link, and complete the press-fitting. When the chain of medium size is press-fitted, the upper limit plate 7 passes through the limit groove 28 and enters the sleeve 24 to restrict the inner shell 25, so that the inner shell 25 cannot move during press-fitting, so that the pressing block 26 cooperates with the inner shell 25 for press-fitting. When the chain of smaller size is press-fitted, the lower limit plate 7 passes through the limit groove 28 and enters the inner shell 25 to restrict the pressing block 26, so that the pressing block 26 cannot move during press-fitting, so that the pressing block 26 is press-fitted alone. During the press-fitting process, the sleeve 24 can drive the linkage plate 5 to descend synchronously through the limit groove 28 and the limit plate 7, and the limit rod 3 can press the linkage plate 5 through the limit hole 6. The support plate 19 can be controlled by the spring 22 to prevent the linkage plate 5 from being tilted, and the support spring 4 can drive the linkage plate 5 to reset after the press-fitting is completed, and can also provide support for the linkage plate 5 to prevent the linkage plate 5 from falling under the action of gravity after the limit plate 7 is completely out of the limit groove 28 during adjustment, resulting in the inability to adjust again. During press-fitting, the support plate 19 can drive the insertion rod 21 to fall synchronously through the buffer spring 22, and the insertion rod 21 is inserted into the slot 12. The shift rod 23 follows the insertion rod 21 to enter the insertion rail 13 synchronously, and presses the stopper 15 to rotate in the insertion rail 13 during the descending process and stretches the tension spring 16. After the shift rod 23 passes through the stopper 15, the stopper 15 can rebound under the action of the tension spring 16 and be stuck in the insertion rail 13. After the insertion rod 21 touches the bottom and cannot move, as the support plate 19 continues to fall,The buffer spring 22 is compressed to prevent the insertion rod 21 from hindering the movement of the support plate 19. The sleeve 20 can limit the insertion rod 21 to prevent the insertion rod 21 from deflecting. After the press-fitting is completed, the lifting rod 18 drives the support plate 19 to rise, which can drive the insertion rod 21 to rise. During the rise of the insertion rod 21, the shift rod 23 can follow the insertion rod 21 to move in the insertion rail 13. When the shift rod 23 contacts the stopper 15, the stopper 15 can block and guide the shift rod 23, so that the shift rod 23 slides from the shift groove 14 to the upper end of the insertion rail 13, so that the shift rod 23 drives the feeding wheel 11 to rotate half a circle through the shift groove 14, and then the insertion rod 21 drives the feeding wheel 11 to rotate half a circle. The movable shifting rod 23 leaves the insertion rail 13, so that the feeding wheel 11 automatically conveys the chain without manual feeding. Because there are only two chain teeth on the feeding wheel 11, the feeding wheel 11 will only drive the chain to move a distance of one chain link every half turn, ensuring that the chain can be pressed in sequence. The clamping ring 9 can limit the clamping seat 10 to prevent the shifting rod 23 from being blocked by the block 15. The insertion rod 21 raises the feeding wheel 11 through the shifting rod 23. When adjusting the slide 205, the clamping seat 10 can also be removed from the clamping ring 9, so that the feeding wheel 11 that matches the chain size can be replaced on the pad 8.

[0034] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A chain press-fitting device for an electric bicycle, characterized in that: The invention comprises a base (1) and an adjustment component (2), wherein the adjustment components (2) are symmetrically arranged on both sides of the base (1), and the adjustment component (2) comprises a slide groove (201), a slide cavity (202), a slider (204), a slide seat (205) and an adjustment rod (206), wherein the slide grooves (201) are symmetrically opened on both sides of the base (1), and a slide cavity (202) is arranged below the slide groove (201), a slide plate (203) is snap-connected in the slide cavity (202), and a slider (204) is symmetrically connected above the slide plate (203), a slide seat (205) is arranged above the slider (204), an adjustment rod (206) is rotatably connected in the slide cavity (202), and the slide plate (203) is rotatably connected to the slide cavity (20 2) is slidably connected to the base (1), and the slider (204) is slidably connected to the base (1) by snapping and engaging with the base (1) through the slide groove (201), the adjusting rod (206) is threadedly connected to the slide plate (203), and the surface of the adjusting rod (206) is provided with a bidirectional thread, the upper part of the sliding seat (205) is symmetrically connected to a limit rod (3), and the middle part of the sliding seat (205) is connected to a support spring (4), the upper end of the support spring (4) is connected to a linkage plate (5), and the linkage plate (5) is elastically connected to the sliding seat (205) through the support spring (4), the surface of the linkage plate (5) is symmetrically provided with a limit hole (6), and one side of the linkage plate (5) is symmetrically connected to a limit plate (7) from top to bottom, and the limit rod (3) is connected to the linkage through the limit hole (6). The movable plate (5) is slidably connected, and the two sides of the slide seat (205) are symmetrically provided with pads (8), and a snap ring (9) is connected to the top of the pad plate (8), and a clamping seat (10) is clamped and connected inside the clamping ring (9), and the clamping seat (10) is rotatably connected to the pad plate (8) through the snap ring (9), and a feeding wheel (11) is connected to the top of the clamping seat (10), and a plug rail (13) is provided in the center of the feeding wheel (11), and slots (12) are symmetrically provided on both sides of the plug rail (13), and only two chain teeth are provided on the outer side of the feeding wheel (11), and a shift groove (14) is provided between the plug rails (13), and a stopper (15) is rotatably connected to the lower part of the plug rail (13), and a tension spring (12) is connected to one side of the stopper (15). 6), and the stopper (15) is elastically connected to the feeding wheel (11) through a tension spring (16), a crossbeam (17) is connected above the base (1), and a lifting rod (18) is symmetrically arranged on the lower surface of the crossbeam (17), a support plate (19) is connected below the lifting rod (18), and sleeves (20) are arranged at the four corners of the support plate (19), an insertion rod (21) is slidably connected to the inner side of the sleeve (20), and one end of the insertion rod (21) is connected to a buffer spring (22), and a shift rod (23) is arranged at the other end of the insertion rod (21), the insertion rod (21) is elastically connected to the support plate (19) through the buffer spring (22), and the insertion rod (21) is slidably connected to the feeding wheel (11) and the holder (10) through the slot (12),The shift rod (23) is slidably connected to the feeding wheel (11) through the insertion rail (13) and the shift groove (14); a sleeve shell (24) is connected below the support plate (19); and an inner shell (25) is slidably connected to the inner side of the sleeve shell (24); a pressing block (26) is arranged on the inner side of the inner shell (25); and a press spring (27) is connected between the sleeve shell (24) and the inner shell (25) and between the inner shell (25) and the pressing block (26); both sides of the sleeve shell (24) and the inner shell (25) are provided with a limiting groove (28); and the limiting plate (7) is slidably connected to the sleeve shell (24) and the inner shell (25) through the limiting groove (28).

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